Tissue box



FIG. 1 is a top, front, and left side perspective view of a tissue box showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being identical in appearance;

FIG. 4 is a front elevational view thereof, the rear being identical in appearance; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a tissue box, as shown and described. 